This can be stated in active form. Alternate translation: "no one took away the high places" or "Jotham did not have anyone take the high places away" (See: [[rc://en/ta/man/translate/figs-activepassive]])
"Jotham built" represents Jotham making his workers build it. Alternate translation: "Jotham had his workers build the upper gate" (See: [[rc://en/ta/man/translate/figs-metonymy]])